When you say "stops functioning" do you mean it locks up frozen?

If so, is there an approximate time it usually happens since you start using it?

Often if you have a bad piece of hardware it will work until it heats up. Then it will cause the machine to lock up. You power it off and leave it alone for awhile. It cools down. You turn it on again. It works until the bad part heats up again.

If something different is happening please give details.

It sounds like a hardware problem to me. Most of the time if a PC just locks up solid not related to a particular program, it's the hardware. I don't think any tweak is going to fix it. I'd check into repair options.

Originally Posted by Yorin

Can you tell me what kind of hardware problem it can be?
maybe when i tell them at the computer store, they can fix it..

Grtz

You need the machine, tools, meters etc.. to diagnose it.

Check out the places around and see who has a good reputation.

Hello Yorin,
The first place to start is to run a memory test, use Memtest, or the built in one in vista.
Run the test overnight, good luck and post your results.